Grok’s paid plans start at $20/month for basic access and go up to $60/month...

https://lanesniceblog.scriblorax.com/posts/how-do-i-audit-my-integration-for-old-grok-model-ids

Grok’s paid plans start at $20/month for basic access and go up to $60/month for premium features. Each plan allows about 10 prompts every 2 hours, helping manage usage without surprises